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Op Code Expansion


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In my computer organization and architecture class, we were assigned homework over this subject. I think I got the right answers, but I would be very grateful if someone could take a look at this for me.


the questions are.

11-A.) in a computer instruction format, the instruction length is 11 bits and the size of an address field is 4 bits. Is it possible to have

5 2-address instructions

45 1-address instructions

32 0-address instructions

using the format? justify your answer.

11-B.) Assume that a computer architect has already designed 6 2-address and 24 0-address instructions using the instruction format given in 11-A. What is the maximum number of 1-address instructions that can be added to the instruction set?

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